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From: Alan Tull <atull@kernel.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Moritz Fischer <moritz.fischer@ettus.com>,
	Alan Tull <atull@kernel.org>,
	linux-kernel@vger.kernel.org, linux-fpga@vger.kernel.org,
	Alan Tull <atull@opensource.altera.com>
Subject: [PATCH 4/8] fpga: add config complete timeout
Date: Thu, 23 Mar 2017 19:34:27 -0500
Message-ID: <1490315671-5076-5-git-send-email-atull@kernel.org> (raw)
In-Reply-To: <1490315671-5076-1-git-send-email-atull@kernel.org>

From: Alan Tull <atull@opensource.altera.com>

Adding timeout for maximum allowed time for FPGA to go to
operating mode after a FPGA region has been programmed.

Signed-off-by: Alan Tull <atull@opensource.altera.com>
---
 drivers/fpga/fpga-region.c    | 3 +++
 include/linux/fpga/fpga-mgr.h | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/drivers/fpga/fpga-region.c b/drivers/fpga/fpga-region.c
index 2fe2a52..ae4c61a 100644
--- a/drivers/fpga/fpga-region.c
+++ b/drivers/fpga/fpga-region.c
@@ -385,6 +385,9 @@ static int fpga_region_notify_pre_apply(struct fpga_region *region,
 	of_property_read_u32(nd->overlay, "region-freeze-timeout-us",
 			     &info->disable_timeout_us);
 
+	of_property_read_u32(nd->overlay, "config-complete-timeout-us",
+			     &info->config_complete_timeout_us);
+
 	/* If FPGA was externally programmed, don't specify firmware */
 	if ((info->flags & FPGA_MGR_EXTERNAL_CONFIG) && firmware_name) {
 		pr_err("error: specified firmware and external-fpga-config");
diff --git a/include/linux/fpga/fpga-mgr.h b/include/linux/fpga/fpga-mgr.h
index e2ef94f..b4ac24c 100644
--- a/include/linux/fpga/fpga-mgr.h
+++ b/include/linux/fpga/fpga-mgr.h
@@ -77,11 +77,14 @@ enum fpga_mgr_states {
  * @flags: boolean flags as defined above
  * @enable_timeout_us: maximum time to enable traffic through bridge (uSec)
  * @disable_timeout_us: maximum time to disable traffic through bridge (uSec)
+ * @config_complete_timeout_us: maximum time for FPGA to switch to operating
+ *	   status in the write_complete op.
  */
 struct fpga_image_info {
 	u32 flags;
 	u32 enable_timeout_us;
 	u32 disable_timeout_us;
+	u32 config_complete_timeout_us;
 };
 
 /**
-- 
2.7.4

  parent reply index

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-24  0:34 [PATCH 0/8] patches for fpga Alan Tull
2017-03-24  0:34 ` [PATCH 1/8] fpga: altera_freeze_bridge: Constify ops Alan Tull
2017-03-24  0:34 ` [PATCH 2/8] dt: bindings: fpga: add xilinx slave-serial binding description Alan Tull
2017-03-24  0:34 ` [PATCH 3/8] fpga manager: Add Xilinx slave serial SPI driver Alan Tull
2017-03-24  0:34 ` Alan Tull [this message]
2017-03-24  0:34 ` [PATCH 5/8] fpga pr ip: Core driver support for Altera Partial Reconfiguration IP Alan Tull
2017-03-24  0:34 ` [PATCH 6/8] fpga dt: bindings " Alan Tull
2017-03-24  0:34 ` [PATCH 7/8] fpga pr ip: Platform driver " Alan Tull
2017-03-24  0:34 ` [PATCH 8/8] MAINTAINERS: Add file patterns for fpga device tree bindings Alan Tull

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